#pragma once
#include <pthread.h>
class Mutex
{
public:
    Mutex(pthread_mutex_t *lock_p = nullptr)
        : _lock_p(lock_p)
    {
    }
    void lock()
    {
        if (_lock_p)
            pthread_mutex_lock(_lock_p);
    }
    void unlock()
    {
        if (_lock_p)
            pthread_mutex_unlock(_lock_p);
    }

private:
    pthread_mutex_t *_lock_p;
};
class LockGuard
{
public:
    LockGuard(pthread_mutex_t *mutex)
        : mutex_(mutex)
    {
        mutex_.lock();
    }
    ~LockGuard()
    {
        mutex_.unlock();
    }

private:
    Mutex mutex_;
};